Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William R Chatlos, PHD

Individual provider Psychologist · NPI 1639477557

Dr. William R Chatlos, PHD is a Psychologist in Reston, Virginia. Practices as a sole proprietor. Licensed in Virginia.

Licensed in
VA
In the registry since
2011
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

11333 Sunset Hills Rd
Reston, VA 20190-5205
Phone: (703) 437-9103
Fax: (703) 464-0507
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 0811000922 (VA)

Record details

NPI number1639477557
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 1, 2011
Last updated in NPPESMarch 1, 2011
Mailing address11333 Sunset Hills Road, Reston, VA 20190-5205

Other providers in Reston